Third-order nonlinear optical material

A third-order nonlinear optical material comprising a complex compound represented by the general formula:A.sub.k B.sub.l (LIG.sub.a).sub.i (LIG.sub.b).sub.j (1)wherein A represents one metallic element selected from the group consisting of Cr, Mo and W; B represents one metal selected from the group consisting of Ni, Pd and Pt; each of LIG.sub.a and LIG.sub.b represents one ligand selected from the group consisting of monodentate and higher ligands; k is an integer of 0 or 1 to 4; l is an integer of 0 or 1 to 4; k+l is 2 or 4; i is an integer of 0 to 18; j is an integer of 0 to 18; and i+j is an integer of 1 to 18; provided that i and i+j are determined depending on the type and number of metals and the types of LIG.sub.a and LIG.sub.b.

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Claims

1. A third order nonlinear optical device comprising a material comprising a complex compound represented by the general formula:

2. The device of claim 1, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, l=0, i=0, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.

3. The device of claim 1, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pt, l=2, LIG.sub.a =X, wherein X is a halogen selected from the group consisting of F, Cl, Br, and I, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.

4. The device of claim 3, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pt, l=2, LIG.sub.a =Cl, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.

5. The device of claim 3, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pt, l=2, LIG.sub.a =Br, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.

6. The device of claim 3, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pt, l=2, LIG.sub.a =I, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.

7. The device of claim 1, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pd, l=2, LIG.sub.a =X, wherein X is a halogen selected from the group consisting of F, Cl, Br, and I, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.

8. The device of claim 7, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pd, l=2, LIG.sub.a =Cl, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.

9. The device of claim 7, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pd, l=2, LIG.sub.a =Br, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.

10. The device of claim 7, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pd, l=2, LIG.sub.a =I, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.

11. The device of claim 1, further comprising a solvent.

12. The device of claim 11, wherein said complex compound is dissolved in said solvent to attain a concentration of said complex compound of 0.01 to 0.5% by weight.

13. The device of claim 11, wherein said solvent is a member selected from the group consisting of dichloromethane, benzene, tetrahydrofuran, chlorobenzene and dimethoxyethane.

14. The device of claim 1 wherein at least one of LIG.sub.a and LlG.sub.b is monodentate and is selected from the group consisting of: X.sup.- wherein X is a halogen; R.sup.- wherein R is H, an alkyl of C.sub.n H.sub.2n+1, wherein n is 1 to 5; an aromatic ring which is unsubstituted or substituted with methyl, ethyl or phenyl; NCS.sup.-; and NCMe.sup.-.

15. The device of 1 wherein at least one of LIG.sub.a and LIG.sub.b is bidentate and is selected from the group consisting of: RCOO.sup.-, wherein R is H, an alkyl of C.sub.n H.sub.2n+1, wherein n is 1 to 5; an aromatic ring which is unsubstituted or substituted with acetate, propionate, or benzoate; and an organic compound whose fundamental structure has at its 1- and n positions (n=3, 4, 5, 6, and 7) elements being identical to each other or different from each other and selected from the group consisting of N, O, S, and P, these N, O, S, and P being crosslinked by an alkyl or a group included in an aromatic ring.

16. The device of claim 1 wherein at least one of LIG.sub.a and LIG.sub.b is terdentate and is an organic compound whose fundamental structure has at its 1-, n- and m- positions (n=3, 4, 5, 6, and 7; m=n+2,3,4,5,6) elements being identical to each other or different from each other and selected from the group consisting of N, O, S, and P, these N, O, S, and P being crosslinked by an alkyl or a group included in an aromatic ring.

17. The device of claim 1 which is selected from the group consisting of a fast switch, an optical logical circuit, an optical memory, a phase correction device, a phase conjugate mirror or an image transmission material.

18. A method of making an optical device having high third order nonlinear optical effects comprising manufacturing the device from a material comprising a complex compound represented by the general formula:

19. The method of claim 18 wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, l=0, i=0, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.

20. The method of claim 18 wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pt, l=2, LIG.sub.a =X, wherein X is a halogen selected from the group consisting of F, Cl, Br, and I, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.

21. The method of claim 20 wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pt, l=2, LIG.sub.a =Cl, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.

22. The method of claim 20, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pt, l=2, LIG.sub.a =Br, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.

23. The method of claim 20, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pt, l=2, LIG.sub.a =l, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.

24. The method of claim 18, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pd, l=2, LIG.sub.a =X, wherein X is a halogen selected from the group consisting of F, Cl, Br, and I, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.

25. The method of claim 24, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pd, l=2, LIG.sub.a =Cl, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.

26. The method of claim 24, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pd, l=2, LIG.sub.a =Br, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.

27. The method of claim 24, wherein the complex compound is represented by the general formula (1) wherein A=Mo, k=2, B=Pd, l=2, LIG.sub.a =I, i=2, LIG.sub.b =6-diphenylphosphino-2-pyridonate and j=4.

Referenced Cited
U.S. Patent Documents
5162939 November 10, 1992 Herron et al.
5234758 August 10, 1993 Olsen et al.
5290485 March 1, 1994 Gotoh et al.
5368782 November 29, 1994 Gotoh et al.
5432635 July 11, 1995 Tanahashi et al.
5453220 September 26, 1995 Swager et al.
5688442 November 18, 1997 Ando et al.
Other references
  • Mashima et al., J. Am. Chem. Soc., vol. 115, pp. 11632-11633, (1993). Cayton et al., J. Am. Chem. Soc., vol. 111, pp. 8921-8923, (1989). Handa et al., Chemistry Letters, pp. 453-456, (1992).
Patent History
Patent number: 5961890
Type: Grant
Filed: Jul 30, 1997
Date of Patent: Oct 5, 1999
Assignee: Agency of Industrial Science & Technology (Tokyo)
Inventors: Toru Sakaguchi (Ikeda), Koji Ohta (Ikeda), Akira Nakamura (Toyonaka), Kazushi Mashima (Toyonaka)
Primary Examiner: Philip Tucker
Law Firm: Nikaido Marmelstein Murray & Oram LLP
Application Number: 8/903,065
Classifications
Current U.S. Class: Light Transmission Modifying Compositions (252/582); Third Harmonic (359/329)
International Classification: F21V 900; G02F 135;